Hose coupling



Jan. 25, 1927. ,1 D @CONNOR HOSE COUPLING Filed Feb. l2, 1925 l .ZNyE/vToR Patented 225, lgil UNITED STATES lytlp PATENT OFFICE.

DANIEL OCONNOR, F JESSUP, PENNSYLVANIA.

HOSE COUPLING.

Application led February This invention relates to certain new and useful improvements in hose coupling.

The main object of the invention is the production of an improved hose coupling capable of being readily and quickly coupled and uncoupled, and embodying an improved means for locking the coupler in coupled position until manually released in an easy and ready manner.

Other objects relate to the simplicity of the construction, by means of which the above advantages are attained and the tight joint produced. i

Other objects and advantages relate to the f details of the structure, all as will more fully appear from the following description, taken in connection with the accompanying drawings` in wliicl Figure l is a perspective view of hose coujiling of my invention.

Figure 2 is a longitudinal section on line 2-2, Figure l.

Figure 3 is a Figure 2.

Figure l ing ratchet.

The struct-ure as here illustrated consists primarily of two coaxial sections -land -2- respectively1 of any suitable external form, section 2- preferably having a reduced end part -3- externally threaded and adapted to be screwed into the internally threaded end portion of a coupling ring -llO-. The coupling ring is rotatably mounted on and secured to the section --1- as by having an inwardly projecting end flange -tlsealed in a circumferential groove -flf2- in the outer surface of section -1-.

ln order to produce a joint that is assuredly liquid tight, the section 1 is formed with an inwardly extending circumferential liange *flhaving its inner surface inclined somewhat toward the inner end of the sect-ion --`l-, as illustrated.

This flange in connection with the portion of the section -lwhich is of reduced diameter, forms a circui'nferential groove --G- in which the flat lateral por tion iS-e of a gasket --7-- is positioned` This gaskethas a laterally-extending portion Q- constituting a substantially fiat ring with a radial flange lO- at its end so formed that the laterally extending ring portion. entends along the inner surface of the tiange am and the radial {iange- 10 lateral section on line 3-3,

is a perspective view of the rock- 12, 1925. serieu No. 8,718.

lies against the side of the flange -4-- The reduced diameter portion -3- of section --2 is formed at its end with a tapered portion -llextending substantially parallel with the inner` face of the iange --aso that when the coupling ring 40- rotatably carri-ed by section `l is threaded lightly as by a suitable wrench on the section -2-, the end oit' the part *1lcontacts with and compresses the radial portion --8-` of the gasket and the inclined outer surface of the part -ll- @ears against the inner surface of the laterally extending ring 9- and compresses it` against the inner surface of flange -4l-- and the flange -10- of the gash-et is compressed 'against the adjacent wall of the flange -4 whereby when the sections l and -2-- are coupled together to the desired point by rotation of the coupling ring -lO--, a liquidtight joint is assured.

For the purpose of locking the sections -land -2- in this liquid-tight position until manually released, the couplingl ring -lO- is formed with a circumferential slot *12- of a length and width adapted to receive the pawl or dog -13- formed with laterally extending journals lllseated in recesses in the outer surface of the section -1- upon opposite sides of the slot 12- so that the pawl may rock about the journals -14.. The rear end of the pawl is formed with a'projection -15- extending radially and outwardly of the coupling ring and projecting into a hollow boss i6- formed on and projecting outwardly from the surface of the ring -40-, the flange l5- being positioned in the radial opening -17 through the boss and normally having its outer end lying flush with the outer surface of the boss. The. inner side of the dog -13- at its front portion is formed with one or more teeth w18- adapted to engage cooperating teeth -19- upon the outer surface of the reduced portion -13- of section -2-, as perhaps best illustrated in Figure 3. These teeth preferably as shown, have straight surfaces that are radial of the sections --land -Q-f so as to lock the sections --i-u and -Q- against relative rotation in one direction, the other walls of the teeth being obliquely inclined, and permitting relative rotation of the section -2- and the coupling ring -40- in the opposite direction by reason of the fact that the oblique surfaces act to rock the pawl about its journals so as to release the rocking engagement of the ratchet and pawl mechanism. The ratchet teeth on the section -9fas here shown, do not extend entirely around the section, but extend throughout arcs preferably diametrically disposed or arranged in such relation that one of the ratchet mechanisms can always be brought into engagement with the pawl -13- to lock the structure.

For the purpose of maintaining the ratchet and pawl mechanism in engagement under normal conditions, the pawl -l3- is formed at its forward end with a longitudinal recess or jaw -Q0 within which one end of a spring 2lis positioned, the opposite end of the spring preferably lying` in contact with and secured to the inner surface of the coupling ring- 40- by rivets or otherwise, as illustrated, and the section -l is formed with a tapered recess -22 leading to the slot 12 and into which the end portion of the spring 2,1- may more when the toothed portion of dog *13* rocked outwardly by pressure applied to the flange 15- in the boss -16-.

Spring -21- normally holds the pawl in engagement with the ratchet-teeth 1Q- to lock the coupling ring to section -2-.

It will be obvious that it is only necessary to thread the parts together in order to effect a ready and quick coupling of the two sections -1- and -2- through the medium of the coupling ring `40-, and that they will be locked in this position until manually released.

In order to effect release of the locking means, it is only necessary to press inwardly on the liange -15- and then separate the parts by relative rotary movement.

Altho I have shown and described a specific construction as illustrative of a perhaps preferred embodiment of my invention,

I do not desire to restrict myself to the details of the structure as various changes may be made within the scope of the appended calims.

I claim:

l. A hose coupling comprising two sections and a coupling ring rotatably mounted ranged in said slot for rocking movement,

and having a tooth upon one side of its rocking axis and a flange extending through the wall of the coupling ring, a flange on the other side of its axis extending through the wall of the coupling ring, said pawl formed with a jaw at its forward end, a spring member having one end positioned in said jaw and its opposite end secured to the coupling ring.

2. A hose coupling comprising two scctions and a coupling ring rotatably mounted upon one section and having a threaded engagement with the other, one of said sections formed with ratchet teeth and the coupling ring` formed with a slot, a pawl arranged in said slot for rocking moven'ient, and having a tooth upon one side of its roch ing axis and a flange extending through the wall of the coupling ring, a flange on the other side of its axis extending through the wall of the coupling ring, said pawl formed with a jaw at its forward end, a spring member having one yend positioned in said jaw and its opposite end secured to the coupling ring, and a taperingl recess in the coupling` ring leading to said slot and into which the spring may move as the pawl is roclred about its axis.

In witness whereof I have hereunto set my hand this 6th day 0f February. 1925.

DANIEL OCONNGR. 

